CoffeeScript
CoffeeScript
About CoffeeScriptPractice

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Join Exercism’s CoffeeScript Track for access to 97 exercises with automatic analysis of your code and personal mentoring, all 100% free.

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About CoffeeScript

class HelloWorld
  hello: (name = 'World') ->
    "Hello, #{name}!"
module.exports = HelloWorld

97 coding exercises for CoffeeScript on Exercism. From Perfect Numbers to Sum of Multiples.

Get better at programming through fun, rewarding coding exercises that test your understanding of concepts with Exercism.

Perfect Numbers

Perfect Numbers

Determine if a number is perfect, abundant, or deficient based on Nicomachus' (60 - 120 CE) classification scheme for positive integers.

Grade School

Grade School

Given students' names along with the grade that they are in, create a roster for the school.

Sum of Multiples

Sum of Multiples

Given a number, find the sum of all the multiples of particular numbers up to but not including that number.

See all CoffeeScript exercises on Exercism

Key Features of CoffeeScript

CoffeeScript

Transpiles to JavaScript

Same language, better syntax. Use CoffeeScript anywhere JavaScript is used.

Human friendly syntax

Inspired by Ruby and Python, CoffeeScript has a simple, readable, and easy-to-use syntax.

Dynamically typed

Easy to write, easy to read.

Large package ecosystem

CoffeeScript can use any of the 1.3 million+ JavaScript libraries.

Developer happiness

Combine JavaScript's power with your happiness

Multi-paradigm

Use which ever paradigm you want: functional, object-oriented or imperative programming.

Get mentored the CoffeeScript way

Every language has its own way of doing things. CoffeeScript is no different. Our mentors will help you learn to think like a CoffeeScript developer and how to write idiomatic code in CoffeeScript. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in CoffeeScript - they'll help you discover the things you don't know that you don't know.

Learn more about mentoring

Community-sourced CoffeeScript exercises

The CoffeeScript track on Exercism has 97 exercises to help you write better code.

See all CoffeeScript exercises
CoffeeScript

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